/*--------------------------------导航栏-----------------------------------------*/

.nv{
    display: flex;
    justify-content: space-between;
    margin-right: 200px;
    border-bottom: 1px dashed gray;
    margin-bottom: 10px;
    margin-left: 400px;
    margin-right: 400px;
}
.nv>div{
    display: flex;
    justify-content: space-between;
    margin-left: 20px;
    /*border: 1px solid red;*/

}
.nv>div>div{
    display: flex;
    justify-content: space-between;
    margin-left: 20px;
    /*border: 1px solid red;*/
}
/*-----------------------------------标题--------------------------------------*/
.title>div:nth-child(1)>div{
    /*border: 1px solid red;*/
    text-align: center;
    margin-top: 50px;
}
.title>div:nth-child(1)>div:nth-child(1){
    /*border: 1px solid red;*/
    text-align: center;
    color: orange;
    font-size: 30px;
}
.title>div:nth-child(1)>div:nth-child(2){
    /*border: 1px solid red;*/
    font-size: 20px;
}